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ST28 Launch3tookkit.Pdf ST28 OneWeb satellites #41 to #74 ARIANESPACE AT THE ONEWEB CONSTELLATION’S SERVICE FOR THE THIRDTIME For its fourth mission of the year — and the second flight in 2020 with the Soyuz medium-lift launcher — Arianespace will perform the third launch for the OneWeb constellation, orbiting 34 satellites. This 51st Soyuz mission conducted by Arianespace and its Starsem affiliate will be operated from the Baikonur Cosmodrome. It will pave the way for the constellation’s deployment phase − for which Arianespace is planned to perform 18 more medium-lift Soyuz launches from three spaceports (Kourou, Baikonur and Vostochny) during 2020 and 2021, without mentioning the Ariane 62 maiden flight. By operating this third flight on behalf of the global satellite operator OneWeb, Arianespace participates in the fulfilment of its customer’s ultimate ambition: providing internet access for everyone, everywhere. CONTENTS The OneWeb satellites In June 2015, Arianespace and OneWeb signed an agreement for the deployment of Phase 1 of > THE LAUNCH the eponymous constellation, covering 21 launches with the medium-lift Soyuz from three spaceports (Kourou in French Guiana; the Baikonur Cosmodrome in Kazakhstan; and Vostochny ST28 mission Cosmodrome in Russia) through 2020 and 2021. Pages 2-4 On March 2019, Arianespace and OneWeb signed a new launch contract. The launch service agreement specifies the use of: The OneWeb satellites • the qualification launch of the Ariane 62 version, scheduled by the end of 2020; Page 5 • plus two Ariane 6 options (either in its Ariane 62 version, accommodating up to 36 OneWeb satellites, or in the Ariane 64 version with up to 78 OneWeb satellites) to be utilized, starting in 2023. > FURTHER INFORMATION Flight ST28, the 28th Soyuz commercial mission from the Baikonur Cosmodrome performed by Soyuz launch vehicle Arianespace and its Starsem affiliate, will put 34 OneWeb satellites into a near polar orbit at an Pages 6-7 altitude of 450 kilometers. After separation, the satellites will raise themselves to their operational orbit. Launch campaign The initial six OneWeb satellites were successfully orbited by Arianespace on Soyuz Flight VS21 Page 8 from French Guiana on February 27, 2019. On February 7, 2020, Arianespace and its Starsem affiliate launched successfully from Baikonour 34 OneWeb satellites on Soyuz Flight ST27. Countdown and flight sequence OneWeb’s mission is to deliver global communications through a next-generation satellite constellation that will bring seamless connectivity to everyone, everywhere. Page 9-10 To achieve its purpose, OneWeb is building a network composed of low-Earth orbit satellites that ST28 mission profile will provide high-speed, low latency services to a wide range of customers in sectors that include Page 11 aeronautics, maritime, backhaul services, community Wi-Fi, emergency response services and more. Central to its mission, OneWeb also will focus on connecting schools and bridging the Arianespace Baikonur digital divide for people everywhere. facilities Page 12-13 Once deployed, the OneWeb constellation will enable user terminals capable of offering 3G, LTE, 5G and Wi-Fi coverage, providing high-speed access around the world − by air, sea and land. OneWeb’s initial constellation is based on approximately 650 satellites as it grows to meet demand around the world. OneWeb will begin customer demos in 2020 and provide global, 24- hour coverage to customers in 2021. OneWeb Satellites − a joint venture between OneWeb and Airbus Defence and Space − is the constellation’s prime contractor. The OneWeb spacecraft for Flight ST28 were built in OneWeb Satellites’ Florida-based series production line dedicated to the assembly, integration, and test of the OneWeb satellites. They will be the 41st to 74th OneWeb satellites to be launched by Arianespace. PRESS CONTACT Claudia Euzet-Hoyau [email protected] #ST28 @arianespace @arianespaceceo +33 (0)1.60.87.55.11 arianespace.com youtube.com/arianespace arianespace For more information, visit us on arianespace.com 2 @arianespace ST28 OneWeb satellites #41 to #74 With the launch of 34 OneWeb satellites on Flight ST28, Arianespace will have orbited a total of 201 spacecraft from Airbus Defence and Space. The Arianespace backlog of payloads still to be launched for Airbus Defence and Space (excluding the remaining OneWeb satellites) counts 21 additional payloads. RUAG Space AB (Linköping, Sweden) is the prime contractor in charge of development and production of the dispenser system used on Flight ST28. It will carry the satellites during their flight to low Earth orbit and then release them into space. This dedicated dispenser is designed to accommodate up to 36 spacecraft per launch, allowing Arianespace to timely deliver the lion’s share of the initial OneWeb constellation. Arianespace, Starsem and satellite constellations With its current family of launchers (Ariane 5, Soyuz and Vega) and the future family (Ariane 6 and Vega C), Arianespace is a key player in the growth market of satellite constellations − whether for navigation, telecommunications or Earth observation. Indeed, since the late 1990s, Arianespace has launched a total of 121 commercial constellation satellites, including 56 for Globalstar, 20 for O3b, four for Planet and one for Orbcomm; along with 26 institutional satellites for ESA and the European Commission as part of the Galileo constellation project. Arianespace’s backlog, apart from the OneWeb constellation’s payloads, currently consists in 45 more constellation satellites to orbit in particular on behalf of Spire (eight), Airbus Defence and Space (four), as well as for ESA and the European Commission (four). For more information, visit us on arianespace.com 3 @arianespace ST28 OneWeb satellites #41 to #74 MISSION DESCRIPTION Arianespace’s second launch of 2020 will place its satellite passengers into low Earth orbit, at an altitude of 450 km. The Soyuz 2-1b launcher will be carrying a total payload of 5,689 kg. The launch will be performed from the Soyuz Launch Complex in Baikonur, Kazakhstan. DATE AND TIME Liftoff is scheduled for Saturday, March 21, 2020 at exactly: > 12:06 p.m., in Washington, D.C. on March 21, > 17:06 Universal Time (UTC) on March 21, > 06:06 p.m., in Paris on March 21, > 08:06 p.m., in Moscow on March 21, > 10:06 p.m., in Baikonur on March 21, > 02:06 a.m., in Tokyo on March 22. MISSION DURATION The nominal duration of the mission (from liftoff to separation of the satellites) is: 3 hours, 45 minutes. TARGETED ORBIT Orbit Altitude at separation Inclination LEO Approx. 450 km. 87.4 degrees (Low Earth orbit) THE LAUNCH AT A GLANCE Following lift-off from the Baikonur Cosmodrome, the powered phase of the lower three Soyuz stages will last approximately nine minutes. The launcher’s third stage will then be separated from the upper composite, which comprises the Fregat upper stage and the OneWeb satellites. The three lower Soyuz stages and the payload fairing will fall back to Earth. Prior to release of the satellites, Fregat will carry out several main powered phases. The 34 satellites will be then separated during nine separation sequences. At the end of the mission, one firing of the Fregat engine will place Fregat into a re-entry orbit. SOYUZ PAYLOAD CONFIGURATION 34 > Payload: 34 OneWeb satellites > Mass at liftoff: 5,015 kg. (147.5 kg. maximum for each satellite) > ST Fairing > OneWeb Dispenser System For more information, visit us on arianespace.com 4 @arianespace ST28 OneWeb satellites #41 to #74 OneWeb Satellites CUSTOMER OneWeb MANUFACTURER OneWeb Satellites (Florida factory) MISSION Telecommunications OPERATIONAL ORBIT Low Earth orbit, at 1,200 km. altitude and 87.4° inclination PLATFORM Specific MASS AT LAUNCH 5,015 kg. (147.5 kg. for each satellite) PROPULSION Plasmic propulsion system BATTERY Li-ion ANTENNAS Two TTC omni antennas ; two Ku-band antennas ; two Ka-band antennas STABILIZATION MODE 3-axis stabilized COVERAGE Global PRESS CONTACTS OneWeb OneWeb Airbus Defence and Space Tabitha Aldrich-Smith Ralph Heinrich VP Marketing et Communications FTI Consulting Head of News and Media Relations Tel: +44 7970 440291 Email: [email protected] Phone: +49 171 304 9751 Email: [email protected] E-mail: [email protected] Website: www.oneweb.world Website: www.airbus.com For more information, visit us on arianespace.com 5 @arianespace ST28 OneWeb satellites #41 to #74 SOYUZ LAUNCH VEHICLE The Soyuz launch vehicle family has provided reliable and efficient launch services since the start of space exploration. Soyuz rockets, which launched both the first artificial satellite and the first human into space, have performed some 1,915 launches to date. Today, Soyuz is used for manned and unmanned flights to the International Space Station, as well as Russian government launches and commercial launches. Introduced in 1966, Soyuz has been the workhorse of the Soviet/Russian space program. As the only manned launch vehicle in Russia and the former Soviet Union, Soyuz meets very high standards of reliability and robustness. The first launch of the Soyuz 2-1a version on November 8, 2004 from the Plesetsk Cosmodrome represented a major step in the Soyuz launch vehicle’s development program. This modernized version, also used to successfully launch MetOp-A on October 19, 2006 from the Baikonur Cosmodrome, features a digital control system providing additional mission flexibility; it also enables control of the launch vehicle fitted with the 4.1-meter ST payload fairing. This was a necessary step towards the next-generation Soyuz 2-1b launcher, the culmination of a joint European/Russian upgrade program. It adds a more powerful third stage engine, significantly increasing the launcher’s overall performance. The upgraded Soyuz 2-1b launch vehicle’s inaugural flight was successfully performed from Baikonur Cosmodrome on December 27, 2006, orbiting the Corot scientific spacecraft for the French CNES space agency. The decision of the European Space Agency to introduce Soyuz launch capability at the Guiana Space Center (CSG) in French Guiana marked a major step forward in expanding the range of missions.
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